6th Grade Science : God's Great Universe Ch. 4.1-4.4 Test Review

The force that resist motion:

• vacuum

• friction

• gravity

A large cloud of gas and dust floating in space:

• nebula

• galaxy

• nova

The galaxy we live in:

• Proxima Centauri

• the Milky Way

• the Nebulae

One of the three basic galactic shapes:

• square

• spiral

• triangle

One of the three galaxies located closest to ours:

• the Milky Way

• Proxima Centauri

• Small Magellanic Cloud

A(n) _____ galaxy resembles an egg or a football.

• elliptical

• spiral

• nebula

Scientists who study outer space are called:

• geologist

• astronomers

• star gazers

A star system containing from millions to billions of stars is called a(n):

• nebula

• galaxy

• ellipse

The study of the stars, planets, and all other heavenly bodies is called:

• astronomy

• ecology

• seismology

True/False: Dark patches on the sun's photosphere are called sunspots.

• True

• False